#377B1B#377B1B

#377B1B is a mid, vivid green. Relative luminance 0.151; OKLCH L 51.9% C 0.145 H 138.4°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#377B1B
RGB	rgb(55, 123, 27)
HSL	hsl(103, 64%, 29%)
HSV	hsv(103, 78%, 48%)
CMYK	cmyk(55.3%, 0%, 78%, 51.8%)
CIE-LAB	lab(45.71, -39.32, 42.95)
CIE-LCH	lch(45.71, 58.23, 132.47°)
OKLab	oklab(51.9% -0.1086 0.0963)
OKLCH	oklch(51.9% 0.145 138.4)
XYZ	xyz(8.8560, 15.0566, 3.4762)
Luminance	0.1506 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377B1B #5F1B7B

analogous

#677B1B #377B1B #1B7B2F

triadic

#377B1B #1B377B #7B1B37

tetradic

#377B1B #1B677B #5F1B7B #7B2F1B

square

#377B1B #1B677B #5F1B7B #7B2F1B

split-complementary

#377B1B #2F1B7B #7B1B67

monochromatic

#0B1906 #214910 #377B1B #4DAD26 #69D43C

Accessibility & contrast

On white

5.24

#377B1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#377B1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #377B1B

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377B1B	#FFFFFF	#000000	##FFFFFF
##377B1B	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F7006

Deuteranopia (green-blind)

#766A25

Tritanopia (blue-blind)

#317769

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #377b1b;
/* rgb */ color: rgb(55, 123, 27);
/* oklch */ color: oklch(51.9% 0.145 138.4);

Tailwind

colors: {
  custom: {
    50: '#76a25f',
    500: '#377b1b',
    950: '#000000',
  },
}

SCSS

$custom: #377b1b;
$custom-light: #76a25f;
$custom-dark: #000000;

JSON

{
  "hex": "#377b1b",
  "rgb": {
    "r": 55,
    "g": 123,
    "b": 27
  },
  "hsl": {
    "h": 102.5,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.51896,
    "c": 0.14515,
    "h": 138.4
  },
  "luminance": 0.15057
}

Semantic roles & 50–950 ramp

primary

#377B1B

secondary

#8F43AF

accent

#41E7B7

background

#F7FAF5

surface

#EDF3EA

border

#C8CDC6

text

#090F05

muted

#7B7F79

Preview Lab

Preview with #377B1B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →